66 Valiant heat/ac fan question

On the top of the A/C-Heater box there will be a resistor unit that the fan switch plugs into and the feed wire for the blower comes off of it. On my 68 Barracuda the feed wire went thru the bulkhead connector and then to the blower. You have to have a service manual to get the actual wiring diagram for the A/C system as that is part of an accessory wiring harness. Maybe someone has that diagram as I only have it for 67 and 68.